<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>161_navigation对象</title>
	</head>
	<body>
		<script>
			/* navigator.cookieEnabled  //cookie是否可用，返回bool值
			navigator.geolocation 返回一个 Geolacation对象，即经纬度
			navigator.hid获取设备，比如手柄等
			navigator.language  获取浏览器语言
			navigator.userAgent 返回一个用来描述浏览器信息的字符串
			 */
			function getBrowserName(userAgent) {
				// The order matters here, and this may report false positives for unlisted browsers.
				if (userAgent.includes("Firefox")) {
					// "Mozilla/5.0 (X11; Linux i686; rv:104.0) Gecko/20100101 Firefox/104.0"
					return "Mozilla Firefox";
				} else if (userAgent.includes("SamsungBrowser")) {
					// "Mozilla/5.0 (Linux; Android 9; SAMSUNG SM-G955F Build/PPR1.180610.011) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/9.4 Chrome/67.0.3396.87 Mobile Safari/537.36"
					return "Samsung Internet";
				} else if (userAgent.includes("Opera") || userAgent.includes("OPR")) {
					// "Mozilla/5.0 (Macintosh; Intel Mac OS X 12_5_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36 OPR/90.0.4480.54"
					return "Opera";
				} else if (userAgent.includes("Edge")) {
					// "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36 Edge/16.16299"
					return "Microsoft Edge (Legacy)";
				} else if (userAgent.includes("Edg")) {
					// "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36 Edg/104.0.1293.70"
					return "Microsoft Edge (Chromium)";
				} else if (userAgent.includes("Chrome")) {
					// "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36"
					return "Google Chrome or Chromium";
				} else if (userAgent.includes("Safari")) {
					// "Mozilla/5.0 (iPhone; CPU iPhone OS 15_6_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.6 Mobile/15E148 Safari/604.1"
					return "Apple Safari";
				} else {
					return "unknown";
				}
			}

			const browserName = getBrowserName(navigator.userAgent);
			alert(`You are using: ${browserName}`);
		</script>
	</body>
</html>